问题
选择题
He looked around and caught a man _____ his hand into the pocket of a passenger.
A．put
B．to be putting
C．to put
D．putting
答案
答案：D
catch sb. doing sth. （偶然或突然）发现或撞见某人正在做某事。
搜题请搜索小程序“爱下问搜题”
He looked around and caught a man _____ his hand into the pocket of a passenger.
A．put
B．to be putting
C．to put
D．putting
答案：D
catch sb. doing sth. （偶然或突然）发现或撞见某人正在做某事。